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Epic Test Code POC1112 PH VENOUS iSTAT

Performing Location(s)

BMC,FOX

Specimen Type

Whole Blood, Venous

Preferred Container

Heparin coated syringe or capillary or Green top tube (prefer Dark Green top tube)

Alternate Container

Unheparinized syringe for POC immediate testing only

Minimum Volume to Submit for Testing

2.0 mL Whole blood

Transportation Needs

Deliver to laboratory at room temp. within 30 minutes.

Do Not send through the pneumatic tube system

Causes for Rejection

Mislabeled or unlabeled specimen

Clotted specimen

Specimen not analyzed within 30 minutes at room temperature or 60 minutes on ice

Pneumatic tube transport of green top tubes or syringes

Specimen contaminated with Room Air (bubbles in syringe or uncapped)

Reference Values

Reference Ranges

Analyte

Units

Population

Venous

Cord:Arterial or Venous

Capillary

pH

(none)

All populations

7.35-7.43

7.33-7.45
CV <7.10

7.35-7.45

 

Critical Values

Analyte

Units

Population

Arterial/
Capillary  Low

Arterial/
Capillary High

Venous Low

Venous High

Cord:Arterial or Venous

pH

(none)

All

< 7.25

>7.60

<7.25

>7.60

<7.10

 

Includes

Measured – pH

Additional Information

Requisition must indicate source (i.e. venous) and time sample is drawn

 

Testing Site Dependent Information

Days of Analysis

All

Available STAT

Yes

Methodology

pH  = direct potentiometry

 

CPT Code

pH- 82800

 

Last Updated

12-JUL-23 MS